CN109731219B - Implantable spinal nerve stimulation device and adjustment method - Google Patents
Implantable spinal nerve stimulation device and adjustment method Download PDFInfo
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- CN109731219B CN109731219B CN201811648297.7A CN201811648297A CN109731219B CN 109731219 B CN109731219 B CN 109731219B CN 201811648297 A CN201811648297 A CN 201811648297A CN 109731219 B CN109731219 B CN 109731219B
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Abstract
An implantable spinal cord nerve stimulation device, comprising: the electrode assembly is implanted on spinal nerves and used for forming an electric field and electrically stimulating the spinal nerves; the comfort level acquisition device is used for receiving comfort data input by a user and sending the comfort data to the control device; the state acquisition device is used for acquiring user state data and sending the user state data to the control device; and the control device is connected to the electrode assembly, the comfort degree acquisition device and the posture acquisition device and is used for adjusting the electric field generated by the electrode assembly according to the comfort degree data and/or the user state data input by a user. The control device determines the offset, the offset direction and the offset angle of the electrode assembly according to the user state data, and adjusts the electric field formed by the electrodes by combining the user comfort data and the user state number to compensate the electric field change of the electrode assembly so as to avoid the condition that the treatment effect of the electrode assembly is invalid or weakened due to the offset of the electric field caused by the movement of the user.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to an implantable spinal nerve stimulation device and an adjusting method.
Background
The electrode assemblies are used to record and stimulate neural activity in the treatment of nerve-related disorders such as epilepsy, sleep apnea, and pain. These electrode assemblies typically include a structure carrying one or more electrodes and one or more leads. The electrodes typically remain in contact with the nerve of interest and are connected by leads to external electrical devices capable of processing the nerve signals and/or generating stimulation pulses to perform treatment of nerve-related disorders.
When the electrode assembly is used, the electrode assembly is implanted into the nerve corresponding to the to-be-treated part, but the position of the nerve can be changed due to the movement of a human body, and the tiny displacement difference can be generated between the electrode assembly and the nerve corresponding to the to-be-treated part, so that the treatment effect of the electrode assembly is weakened.
Disclosure of Invention
Object of the invention
The invention aims to provide an implantable spinal nerve stimulation device and an adjusting method, which can adjust the electric stimulation effect of an electrode assembly according to the feeling of a patient.
(II) technical scheme
To achieve the above object, the present invention provides an implantable spinal cord nerve stimulation device comprising: the electrode assembly is implanted on spinal nerves and used for forming an electric field and electrically stimulating the spinal nerves; the comfort level acquisition device is used for receiving comfort data input by a user and sending the comfort data to the control device; the state acquisition device is used for acquiring user state data and sending the user state data to the control device; and the control device is connected to the electrode assembly, the comfort degree acquisition device and the posture acquisition device and is used for adjusting the electric field generated by the electrode assembly according to the comfort degree data and/or the user state data input by a user.
Further, the comfort data includes pain location and pain level data.
Further, the user state data comprises user posture data and user motion data, wherein the user posture data comprises standing, sitting, lying and walking of the user; the user motion data includes a walking speed and acceleration of the user.
Further, adjusting the electric field generated by the electrode assembly includes: adjusting the electric field strength by adjusting the magnitude of the current and/or voltage of the electrode assembly; and/or adjusting the stimulation position and/or magnitude of the electric field by adjusting the position and/or number of the current working electrodes in the electrode assembly; and/or adjusting the electrode spacing of the electrode assembly to adjust the stimulation location of the electric field.
Further, the electrode assembly further includes an elastic member; the electrodes are arranged on the elastic component at intervals.
Further, the electrode assembly further includes a memory alloy; the memory alloy is arranged on one side of the elastic component far away from spinal nerves, connected with the elastic component and the control device and used for receiving current and/or voltage sent by the control device to control the extending direction and distance of the elastic component.
Further, the electrode assembly further includes a connection line; the connecting wire is connected with the adjacent electrodes and connected with the control device and is used for changing the electric field of the electrodes by changing the distance between the adjacent electrodes.
The invention also provides an adjusting method of the implantable spinal nerve stimulation device, which comprises the following steps: acquiring comfort data input by a user; collecting user state data; the electric field generated by the electrode assembly is adjusted according to user-entered comfort data and/or user status data.
Further, the comfort data includes pain location and pain level data; and/or, the user state data comprises user posture data and user motion data, wherein the user posture data comprises standing, sitting, lying and walking of the user; the user motion data includes a walking speed and acceleration of the user.
Further, adjusting the electric field formed by the electrodes includes: adjusting the electric field strength by adjusting the magnitude of the current and/or voltage of the electrode assembly; and/or adjusting the stimulation position and/or magnitude of the electric field by adjusting the position and/or number of the current working electrodes in the electrode assembly; and/or the number of the groups of groups,
the electrode spacing of the electrode assembly is adjusted to adjust the stimulation position of the electric field.
(III) beneficial effects
The technical scheme of the invention has the following beneficial technical effects:
(1) Determining whether the electric field of the electrode assembly is offset and the offset by using comfort data input by a user, determining the offset, the offset direction and the offset angle of the electrode assembly by collecting user motion data, and adjusting the electric field formed by the electrode assembly by combining the user comfort data and the user motion number to compensate the change of the electric field caused by the user motion so as to avoid the condition that the treatment effect of the electrode assembly is invalid or weakened due to the offset of the electric field caused by the user motion;
(2) The shape and the size of the memory alloy are changed by arranging the memory alloy on the elastic component and electrifying the memory alloy, so that the shape and the size of the elastic component are changed, the electrode spacing and the position are changed, and the electric field formed by the electrodes is adjusted;
(3) The distance between the electrodes is changed by changing the length of the electrode leads, thereby changing the electric field formed by the electrodes.
Drawings
FIG. 1 is a schematic view of an implantable spinal cord nerve stimulation device of the present invention;
fig. 2 is a schematic structural view of an electrode assembly of the present invention;
fig. 3 is a flow chart of a method of adjusting an implantable spinal nerve stimulation device of the present invention.
Reference numerals:
1: an electrode assembly; 11: an electrode; 12: an elastic member; 13: a connecting wire; 2: a comfort level acquisition device; 3: a state acquisition device; 4: a control device;
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
Fig. 1 is a schematic view of an implantable spinal cord nerve stimulation device of the present invention.
As shown in fig. 1, the implantable spinal nerve stimulating device of the present invention: comprising the following steps: an electrode assembly 1 implanted on spinal nerves for forming an electric field to electrically stimulate the spinal nerves; comfort level obtaining means 2 for receiving comfort level data inputted by a user and transmitting the data to the control means 4; a state acquisition device 3, configured to acquire user state data and send the user state data to the control device 4; and a control device 4 connected to the electrode assembly 1, the comfort level acquiring device 2 and the posture acquiring device for adjusting the electric field generated by the electrode assembly 1 according to the comfort level data and/or the user state data inputted by the user.
The technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Wherein the comfort data comprises pain location and pain level data. The user state data comprises user posture data and user motion data, wherein the user posture data comprises standing, sitting, lying and walking of a user; the user motion data includes a walking speed and acceleration of the user.
In one embodiment, the control device 4 adjusts the current and/or voltage of the electrode assembly 1 according to pain position and pain level data inputted by the user to adjust the electric field intensity, thereby alleviating pain of the user.
In one embodiment, the control device 4 adjusts the position and/or number of the current working electrodes 11 in the electrode assembly 1 according to the pain position and pain level data input by the user to adjust the stimulation position and/or size of the electric field, thereby alleviating the pain of the user.
Optionally, fine tuning is performed on the up, down, left, right, etc. directions of the current working electrode 11 in the electrode assembly 1, so that the electric field direction is fine tuned, so that the electrode 11 is closer to the spinal nerve corresponding to the pain position of the user, and the working electrode 11 can better stimulate the corresponding spinal nerve, so as to reduce the pain of the user caused by the deflection of the electrode 11;
optionally, the number of working electrodes 11 currently in the electrode assembly 1 is increased or decreased to increase or decrease the electric field strength to increase or decrease the stimulation of spinal nerves to reduce user discomfort.
In an embodiment, the control device 4 adjusts the electrode 11 spacing of the electrode assembly 1 according to the pain position and the pain level data input by the user, so as to adjust the stimulating position of the electric field, so that the electrode 11 is closer to the spinal nerve corresponding to the pain position of the user, so that the working electrode 11 stimulates the spinal nerve corresponding to the pain position better, and discomfort of the user caused by the deflection of the electrode 11 is relieved.
Specifically, the user state data comprises user posture data and user motion data, wherein the user posture data comprises standing, sitting, lying and walking of a user; the user motion data includes a walking speed and acceleration of the user.
In one embodiment, the control device 4 adjusts the current and/or voltage of the electrode assembly 1 according to the user status data to adjust the electric field strength, thereby alleviating the pain of the user.
In one embodiment, the control device 4 adjusts the position and/or number of the current working electrodes 11 in the electrode assembly 1 according to the user status data to adjust the stimulation position and/or size of the electric field, thereby alleviating the pain of the user.
Optionally, fine tuning is performed on the up, down, left, right, etc. directions of the current working electrode 11 in the electrode assembly 1, so that the electric field direction is fine tuned, so that the electrode 11 is closer to the spinal nerve corresponding to the pain position of the user, and the working electrode 11 can better stimulate the corresponding spinal nerve, so as to reduce the pain of the user caused by the deflection of the electrode 11;
optionally, the number of working electrodes 11 currently in the electrode assembly 1 is increased or decreased to increase or decrease the electric field strength to increase or decrease the stimulation of spinal nerves to reduce user discomfort.
In an embodiment, the control device 4 adjusts the electrode 11 spacing of the electrode assembly 1 according to the user status data to adjust the stimulating position of the electric field so that the electrode 11 is closer to the spinal nerve corresponding to the pain position of the user, so that the working electrode 11 stimulates the spinal nerve corresponding to the pain position of the user better, and discomfort of the user caused by the deflection of the electrode 11 is relieved.
In an embodiment, the control device 4 determines the offset, the offset direction and the offset angle of the electrode assembly 1 according to the user status data, and adjusts the electric field formed by the electrode 11 in combination with the user comfort data and the user status data to compensate the electric field variation of the electrode assembly 1, so as to avoid the situation that the therapeutic effect of the electrode assembly 1 is invalid or weakened due to the offset of the electric field caused by the user movement. The specific adjustment manner can be referred to the above embodiments, and will not be described herein.
Fig. 2 is a schematic structural view of an electrode assembly of the present invention.
As shown in fig. 2, the electrode assembly 1 includes an electrode 11, and further includes an elastic member 12; the electrodes 11 are arranged at intervals on the elastic member 12. When the spinal nerve is bent or changed in thickness, the elastic member 12 can adapt to the spinal nerve change, preventing the electrode assembly 1 from rubbing against the spinal nerve.
Specifically, the catheter 14 is partially hollow, and the wires connecting the electrodes 11 to the control device 4 are concentrated in the catheter 14.
In an embodiment, the implantable spinal nerve stimulation device further includes a memory alloy; the memory alloy is arranged on one side of the elastic component 12 far away from spinal nerves, is connected with the elastic component 12 and the control device 4, and is used for receiving current and/or voltage sent by the control device 4 to control the extending direction and distance of the elastic component 12 so as to adjust the distance between the electrodes 11 of the electrode assembly 1 and adjust the stimulating position of an electric field.
Specifically, the memory alloy is provided with a plurality of pieces respectively connected with the elastic members 12, and the deformation of the elastic members 12 of different portions is controlled so as to adjust the pitches of the electrodes 11 on the elastic members 12 of different portions, so as to more finely adjust the stimulation position of the electric field.
In one embodiment, the implantable spinal nerve stimulation device further comprises a connection wire 13; the connection lines 13 connect adjacent electrodes 11 and are connected to the control device 4 for changing the electric field of the electrodes 11 by changing the spacing of the adjacent electrodes 11.
In particular, the implantable spinal nerve stimulation device further includes a micro-motor. The micro motor is connected with the connecting wire 13 and the control device 4 and is used for receiving signals of the control device 4, pulling the connecting wire 13 and changing the distance between the adjacent electrodes 11 so as to change the electric field of the electrodes 11.
Fig. 3 is a flow chart of a method of adjusting an implantable spinal nerve stimulation device of the present invention.
As shown in fig. 3, the present invention further provides a method for adjusting an implantable spinal cord nerve stimulation device, comprising the following steps:
step 101, acquiring comfort data input by a user;
102, collecting user state data;
step 103, adjusting the electric field generated by the electrode assembly 1 according to the comfort data and/or the user status data input by the user.
The technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Wherein the comfort data comprises pain location and pain level data. The user state data comprises user posture data and user motion data, wherein the user posture data comprises standing, sitting, lying and walking of a user; the user motion data includes a walking speed and acceleration of the user.
In one embodiment, the current and/or voltage of the electrode assembly 1 is adjusted according to the pain location and pain level data inputted by the user to adjust the electric field strength, thereby alleviating the pain of the user.
In one embodiment, the position and/or number of the current working electrodes 11 in the electrode assembly 1 are adjusted according to the pain position and pain level data input by the user to adjust the stimulation position and/or size of the electric field, thereby alleviating the pain of the user.
Optionally, fine tuning is performed on the up, down, left, right, etc. directions of the current working electrode 11 in the electrode assembly 1, so that the electric field direction is fine tuned, so that the electrode 11 is closer to the spinal nerve corresponding to the pain position of the user, and the working electrode 11 can better stimulate the corresponding spinal nerve, so as to reduce the pain of the user caused by the deflection of the electrode 11;
optionally, the number of working electrodes 11 currently in the electrode assembly 1 is increased or decreased to increase or decrease the electric field strength to increase or decrease the stimulation of spinal nerves to reduce user discomfort.
In an embodiment, according to the pain position and pain level data input by the user, the electrode 11 spacing of the electrode assembly 1 is adjusted to adjust the stimulation position of the electric field so that the electrode 11 is closer to the spinal nerve corresponding to the pain position of the user, so that the working electrode 11 stimulates the spinal nerve corresponding to the pain position of the user better, and discomfort of the user caused by the deflection of the electrode 11 is relieved.
Specifically, the user state data comprises user posture data and user motion data, wherein the user posture data comprises standing, sitting, lying and walking of a user; the user motion data includes a walking speed and acceleration of the user.
In one embodiment, the current and/or voltage of the electrode assembly 1 is adjusted according to the user status data to adjust the electric field strength, thereby alleviating pain of the user.
In one embodiment, the position and/or number of the current working electrodes 11 in the electrode assembly 1 is adjusted according to the user status data to adjust the stimulation position and/or size of the electric field, thereby alleviating the pain of the user.
Optionally, fine tuning is performed on the up, down, left, right, etc. directions of the current working electrode 11 in the electrode assembly 1, so that the electric field direction is fine tuned, so that the electrode 11 is closer to the spinal nerve corresponding to the pain position of the user, and the working electrode 11 can better stimulate the corresponding spinal nerve, so as to reduce the pain of the user caused by the deflection of the electrode 11;
optionally, the number of working electrodes 11 currently in the electrode assembly 1 is increased or decreased to increase or decrease the electric field strength to increase or decrease the stimulation of spinal nerves to reduce user discomfort.
In an embodiment, according to the user status data, the electrode 11 spacing of the electrode assembly 1 is adjusted to adjust the stimulating position of the electric field so that the electrode 11 is closer to the spinal nerve corresponding to the pain position of the user, so that the working electrode 11 stimulates the spinal nerve corresponding to the pain position of the user better, thereby reducing the discomfort of the user caused by the deflection of the electrode 11.
In an embodiment, the offset direction and the offset angle of the electrode assembly 1 are determined according to the user status data, and the electric field formed by the electrode 11 is adjusted by combining the user comfort data and the user status data to compensate the electric field variation of the electrode assembly 1, so as to avoid the condition that the therapeutic effect of the electrode assembly 1 is invalid or weakened due to the offset of the electric field caused by the user movement. The specific adjustment manner can be referred to the above embodiments, and will not be described herein.
The invention aims to protect an implantable spinal nerve stimulation device and an adjusting method, and has the following beneficial technical effects:
(1) Determining whether the electric field of the electrode assembly 1 is offset and the offset by using comfort data input by a user, determining the offset, the offset direction and the offset angle of the electrode assembly 1 by collecting user motion data, and adjusting the electric field formed by the electrode assembly 1 by combining the user comfort data and the user motion data so as to compensate the change of the electric field caused by the user motion, thereby avoiding the condition that the treatment effect of the electrode assembly 1 is invalid or weakened due to the offset of the electric field caused by the user motion;
(2) The shape and the size of the memory alloy are changed by arranging the memory alloy on the elastic component 12 and electrifying the memory alloy, so that the shape and the size of the elastic component 12 are changed, the distance and the position of the electrode 11 are changed, and the electric field formed by the electrode 11 is adjusted;
(3) The spacing of the electrodes 11 is varied by varying the length of the leads between the electrodes 11, thereby varying the electric field formed by the electrodes 11.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and are in no way limiting of the invention. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (7)
1. An implantable spinal nerve stimulation device, comprising: an electrode assembly (1) implanted on spinal nerves for forming an electric field to electrically stimulate the spinal nerves; comfort level obtaining means (2) for receiving comfort data input by a user and transmitting the comfort data to the control means (4); a state acquisition device (3) for acquiring user state data and transmitting the user state data to the control device (4); control means (4) connected to said electrode assembly (1), said comfort level acquisition means (2) and said state acquisition means (3) for adjusting an electric field generated by said electrode assembly (1) in accordance with comfort data and said user state data entered by said user; wherein the user state data comprises user motion data; whether the electric field of the electrode assembly is offset and the offset amount are determined by the comfort data, and the user motion data determines the offset amount, the offset direction and the offset angle of the electrode assembly.
2. The implantable spinal nerve stimulation device according to claim 1, wherein the comfort data includes pain location and pain level data.
3. The implantable spinal nerve stimulation device according to claim 1, wherein the user state data comprises user posture data, wherein the user posture data comprises a user's standing, sitting, lying, walking; the user motion data includes a walking speed and an acceleration of the user.
4. The implantable spinal nerve stimulation device according to claim 1, characterized in that the electrode assembly (1) comprises an electrode (11); said adjusting the electric field generated by said electrode assembly (1) comprising: adjusting the electric field strength by adjusting the magnitude of the current and/or voltage of the electrode assembly (1); and/or adjusting the stimulation position and/or magnitude of the electric field by adjusting the position and/or number of the current working electrode (11) in the electrode assembly (1); and/or adjusting the stimulating position of the electric field by adjusting the electrode (11) spacing of the electrode assembly (1).
5. The implantable spinal nerve stimulation device according to claim 1, characterized in that the electrode assembly (1) further comprises an elastic member (12); the electrodes (11) are arranged on the elastic component (12) at intervals.
6. The implantable spinal nerve stimulation device according to claim 5, characterized in that the electrode assembly (1) further comprises a memory alloy; the memory alloy is arranged on one side of the elastic component far away from the spinal nerve, is connected with the elastic component (12) and the control device (4), and is used for receiving current and/or voltage sent by the control device (4) and controlling the extending direction and distance of the elastic component.
7. The implantable spinal nerve stimulation device according to claim 6, characterized in that the electrode assembly (1) further comprises a connection wire (13); the connecting wire (13) is connected with adjacent electrodes (11) and is connected with the control device (4) and is used for changing the electric field of the electrode assembly (1) by changing the distance between the adjacent electrodes (11).
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